mirror of
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134 lines
3.1 KiB
C++
134 lines
3.1 KiB
C++
//
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// ActiveDispatcher.cpp
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//
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// $Id: //poco/svn/Foundation/src/ActiveDispatcher.cpp#2 $
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//
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// Library: Foundation
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// Package: Threading
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// Module: ActiveObjects
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//
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// Copyright (c) 2006-2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/ActiveDispatcher.h"
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#include "Poco/Notification.h"
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#include "Poco/AutoPtr.h"
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namespace Poco {
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namespace
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{
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class MethodNotification: public Notification
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{
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public:
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MethodNotification(ActiveRunnableBase::Ptr pRunnable):
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_pRunnable(pRunnable)
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{
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}
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ActiveRunnableBase::Ptr runnable() const
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{
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return _pRunnable;
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}
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private:
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ActiveRunnableBase::Ptr _pRunnable;
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};
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class StopNotification: public Notification
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{
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};
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}
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ActiveDispatcher::ActiveDispatcher()
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{
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_thread.start(*this);
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}
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ActiveDispatcher::ActiveDispatcher(Thread::Priority prio)
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{
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_thread.setPriority(prio);
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_thread.start(*this);
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}
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ActiveDispatcher::~ActiveDispatcher()
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{
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try
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{
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stop();
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}
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catch (...)
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{
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}
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}
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void ActiveDispatcher::start(ActiveRunnableBase::Ptr pRunnable)
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{
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poco_check_ptr (pRunnable);
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_queue.enqueueNotification(new MethodNotification(pRunnable));
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}
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void ActiveDispatcher::cancel()
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{
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_queue.clear();
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}
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void ActiveDispatcher::run()
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{
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AutoPtr<Notification> pNf = _queue.waitDequeueNotification();
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while (pNf && !dynamic_cast<StopNotification*>(pNf.get()))
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{
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MethodNotification* pMethodNf = dynamic_cast<MethodNotification*>(pNf.get());
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poco_check_ptr (pMethodNf);
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ActiveRunnableBase::Ptr pRunnable = pMethodNf->runnable();
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pRunnable->duplicate(); // run will release
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pRunnable->run();
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pNf = _queue.waitDequeueNotification();
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}
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}
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void ActiveDispatcher::stop()
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{
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_queue.clear();
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_queue.wakeUpAll();
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_queue.enqueueNotification(new StopNotification);
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_thread.join();
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}
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} // namespace Poco
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